assembly that america will get to the bottom of the murders of chris stevens and the others. >> the attack on civilians in benghazi were attacks on america. there should be no doubt we will be relentless tracking down the killers and bringing them to justice. bill: how possible is that while order in libya is still unknown? we want to begin our coverage now. greg palkot streaming live out of tripoli. what is the latest on this militia crackdown there, greg? >> reporter: bill, martha, we're getting mixed signals about that. we were just talking to our contact in benghazi. he said one of the key militias in that city is it falling into line with the government. we've been out and about here in tripoli. we visited one compound where militias were driven out by libyan security forces but there are new protests planned for here and in benghazi on friday. a sign maybe the folks here aren't too sure what is going on with the militias. amid new concerns some of their weapons are going into the wrong places. one militia commander says a lot of the shoulder-fired rockets that he was holding on his b